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Implementation of integrated nonlocal sensing for object shape and rotational speed
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作者 Zhenyu Guo Yunlong Wang +3 位作者 zehong chang Jiawei Wang Junliang Jia Pei Zhang 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2024年第7期6-12,共7页
The expeditious acquisition of information pertaining to objects through the utilization of quantum technology has been a perennial issue of concern.So far,the efficient utilization of information from dynamic objects... The expeditious acquisition of information pertaining to objects through the utilization of quantum technology has been a perennial issue of concern.So far,the efficient utilization of information from dynamic objects with limited resources remains a significant challenge.Here,we realize a nonlocal integrated sensing of the object's amplitude and phase information by combining digital spiral imaging with the correlated orbital angular momentum states.The amplitude information is utilized for object identification,while the phase information enables us to determine the rotational speed.We demonstrate the nonlocal identification of a rotating object's shape,irrespective of its rotational symmetry,and introduce the concept of the correlated rotational Doppler effect,establishing a fundamental connection between this effect and the classical rotational Doppler effect,i.e.,that both rely on extracting crucial information from the spiral spectrum of objects.The present study highlights a promising pathway towards the realization of quantum remote sensing and imaging. 展开更多
关键词 digital spiral imaging orbital angular momentum correlated rotational Doppler effect
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